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  • This is me and I love coffee.

  • The intoxicating nutty aroma.

  • The rich chocolatey taste.

  • Some days I drink three cups like the average American I am.

  • Other days, I drink more like five or six.

  • But is that too much?

  • First the good news.

  • It's almost impossible to overdose on coffee.

  • There is a lethal dose of caffeine but it's somewhere around 10 grams and the average cup of joe has around 100 milligrams.

  • You'd likely have to drink 100 cups in rapid succession to OD.

  • But that's not to say there's no such thing as too much.

  • The FDA recommends no more than four to five cups a day for the average healthy adult.

  • More than that and you might start to experience some nasty side effects.

  • Most people take in coffee to increase their focus and concentration.

  • But once you take in too much you start to lose that focus.

  • People start getting more agitated, irritable.

  • That's thanks to the hormone, adrenaline.

  • When caffeine hits your system it stimulates your adrenal glands which release the hormone into your body, it makes you feel energetic and alert.

  • Perfect for a fight or flight situation.

  • But too much can be a bad thing.

  • Especially if you suffer from anxiety.

  • But with anxiety you also wanna be careful not to overstimulate or trigger any sort of panic attacks and make anxiety worse, which certainly too much caffeine can do.

  • Adrenaline from caffeine can also increase your heart rate.

  • That's why doctors often recommend against drinking coffee if your heart sometimes beats irregularly.

  • But the risk is really only for bona fide coffee junkies.

  • According to at least two observational studies you have to drink at least nine cups of coffee a day to put yourself at risk of arrhythmia.

  • And finally, there's the question of sleep.

  • Coffee's enemy.

  • Caffeine launches a double threat on your slumber.

  • It blocks the neurochemical adenosine which is what tells your brain that you're tired.

  • It releases a cocktail of stimulants into your brain: adrenaline, dopamine, and glutamate.

  • So after donning your sixth cup of coffee, you don't just feel awake but full of energy.

  • It will power you through that 2:30 meeting or the last class of the day.

  • But if you overdo it, the effect won't wear off when it's time for bed.

  • In one study, researchers monitored the sleep of a dozen volunteers.

  • Some were given a caffeine pill equivalent to about four cups of coffee and others received a placebo instead.

  • Even when the volunteers swallowed the caffeine pills six hours before bedtime, they spent significantly less time in the light stages of sleep.

  • And that can have detrimental effects on daytime function, the authors report.

  • It's sort of just stuck in this loop where you're not sleeping because you drink too much coffee.

  • And then you wake up in the morning and you're not well rested and you're drinking more coffee just to stay awake in the day.

  • Sound familiar?

  • Here's the good news.

  • If you cut yourself off by 2:00, you typically won't have trouble falling asleep.

  • That's because the half-life of caffeine is around five hours.

  • And so most of its stimulating effects will wear off well before the lights go out.

  • And if you also limit your consumption, well then coffee can actually offer a number of health benefits.

  • Research shows that it can help with everything from memory, to exercise, to your relationships with your colleagues.

  • And that's great because for some of us, coffee is just something we'll just never give up.

This is me and I love coffee.

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B2 H-INT US coffee caffeine adrenaline drink anxiety hormone

What Happens To Your Body When You Drink Too Much Coffee

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    Jessieeee   posted on 2019/03/21
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